So as you can see from my exhaust fumes thread i am using the same muffler as jcircs but my shop says it wont fit. Wont clear the frame.
If anyone has the magna flow 12267 setup, PLEASE email or pm me (or post here if you can) pictures from under the car and above. Thank you!!
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY "My mind spins like helicopter blades." -G. Rossdale ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT 3800sc series 2 swap in progress--IT'S ALIVE !!!!! ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 VIN #5835 Stock PRV engine Peugot 604 Intake manifold Exhaust headers Anti-3rd brake light
Now im a bit ticked, i just went out side and crawled under the car and held the muffler up to where its supposed to be and it fits just fine, no length isssue and the width even fits with the Heat shield. I guess i need to find a shop that will let me be there when they have the car up on the lift so i can show them, this place specifically said "oh your not going to be there while its on the lift, unless you want to sit for four hours, we do the regular stuff first and then the custom stuff," so he then said he'd call me before he does anything, and by then the car was down and that was it. He was just explaining it to me how it wouldnt fit, I guess i could call and go back and ask for them to put it on the lift so I can show them but i dont know if i really want to use these guys now.
Ug ! I wish i could find a close shop that will custom weld an exhaust for me and allow me to show them how it is set up.
Also there looks like ther would be room for the cat i got too, but they, didnt even want to hear me talk about cutting the bare ends off a bit to reduce the length.
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY "My mind spins like helicopter blades." -G. Rossdale ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT 3800sc series 2 swap in progress--IT'S ALIVE !!!!! ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 VIN #5835 Stock PRV engine Peugot 604 Intake manifold Exhaust headers Anti-3rd brake light
[This message has been edited by Lou and Blue (edited 07-09-2015).]
So I called the shop back and spoke to them and explained that I think they are trying to raise the muffler too high and that's why they don't think it fits. So he said "ok bring it back Tuesday and we will put It on the lift you can show me and then come get the car later." Is it too much to ask that I show them while its on the lift and then they have me wait while they are welding it so I can be there to answer any questions along the way? I wish I could find another shop nearby And just cancel my Tuesday appt with these guys.
But even my mechanic for my wifes daily Driver says all he knows is this place.
Sorry to be cryptic about the shop but I don't want to be publicly defaming them, maybe it's just a bumpy road to start? Am I giving them too much benefit of the doubt?
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY "My mind spins like helicopter blades." -G. Rossdale ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT 3800sc series 2 swap in progress--IT'S ALIVE !!!!! ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 VIN #5835 Stock PRV engine Peugot 604 Intake manifold Exhaust headers Anti-3rd brake light
Id even cut the trunk a bit but id have to pay someone to fab a new bottom and weld that in too.
Jcircs didnt cut the trunk and his fit fine.
Thank you though!
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY "My mind spins like helicopter blades." -G. Rossdale ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT 3800sc series 2 swap in progress--IT'S ALIVE !!!!! ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 VIN #5835 Stock PRV engine Peugot 604 Intake manifold Exhaust headers Anti-3rd brake light
Jerry (Jcircs) hires performance experts to do his work. Undoubtedly his fabricator made this muffler work. There is a custom muffler shop in Hamilton, NJ called Mufflex and they install similar sized (18"L) mufflers on Fieros. I believe that some shops have cut and modified the muffler to fit. IMO, you'd have to be an expert fabricator to get this muffler to fit without cutting the trunk. On the installs that I have seen the muffler does sit lower than usual but a large muffler in a small place needs to fit somewhere. I believe that Gary Nightmare Cruiser in NJ also has the Magnaflow but I do not know the details of the installation. Dave bmwguru in NJ also uses this muffler on his Fiero. If you do a search you should find something in the archives. As for myself I removed the Flowtech Afterburner muffler today and will be testing the 13" Spintech by the weekend. All of the swaps that I have done have used 13" L mufflers, installation is easy and the entire trunk is kept intact. Maybe the Spintech muffler will work out well but it would surprise me if it was as quiet as the Magnaflow. .
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
If the size is an issue you might want to look at the Jones Exhaust Full Boar line that is also sold thru Summit. They have a muffler #FB2583 that is almost identical to the original FIERO OE muffle with a 13" can and a total length with input /output pipes of 19" total length. They also have a Flowtech "afterburner" #50363FTL muffler listed that also has a 13" case 19" total length. Both the Jones and the Flow are under $100.00. Hope this helps and I'd be looking for another "Custom" exhaust shop after all they have put you thru.
The muffler Fits up just fine. If like to find a welder around here to do it. Jerry, (Jcircs) already spoke to his guy and said the guy is willing to Get me in to do the job but its far away and I have an open manifold.
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY "My mind spins like helicopter blades." -G. Rossdale ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT 3800sc series 2 swap in progress--IT'S ALIVE !!!!! ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 VIN #5835 Stock PRV engine Peugot 604 Intake manifold Exhaust headers Anti-3rd brake light
The muffler Fits up just fine. If like to find a welder around here to do it. Jerry, (Jcircs) already spoke to his guy and said the guy is willing to Get me in to do the job but its far away and I have an open manifold.
Good idea not driving with a open manifold. When I did my turbo exhaust system I just dropped the cradle put it on my truck and drove the whole thing to the exhaust shop. Just another option to consider. I now do the exhaust work here but I have not had luck fitting the long mufflers without trunk interference. Bmwguru cut the trunk when he did his and the other installs that I have seen hang the muffler pretty low to the ground. If there is a way to get that muffler to fit like the stock muffler I wish someone would give me the formula. Check out this thread for some pics on Magnaflow installs: https://www.fiero.nl/forum/A...130314-2-118778.html BTW, do you have the 18" L Magnaflow or the 14" L Magnaflow muffler. The 14" one is a piece of cake to install.
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
[This message has been edited by Dennis LaGrua (edited 07-10-2015).]
I have the 18" one and it fits just fine.its tight but it fits. I will be taking the car to a different muffler Shop Monday and hopefully things will go ok. This other shop is farther away so I am going to try to rig up the muffler using flex pipe just to keep from being interviewed by the local law enforcement.
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY "My mind spins like helicopter blades." -G. Rossdale ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT 3800sc series 2 swap in progress--IT'S ALIVE !!!!! ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 VIN #5835 Stock PRV engine Peugot 604 Intake manifold Exhaust headers Anti-3rd brake light
I've been following this story, and I have to say that you should give up on this shop and find another one to do the work. They gave you a stupid reason in the first place to try and get you to go elsewhere. They don't want to do the work and if they do install the muffler and there are problems with it when they finish they will claim it's your problem because they told you it wouldn't fit. I can see the installer beating the muffler with a hammer and laughing like a nut and saying "Now it will fit" over and over again. Good luck either way.
I am using the stock 3800 bonneville exhaust manifold so the setup is a bit different up top.
I have some pics of Jcircs exhaust but I can't upload pics here with my apple iDevices.
If Monday doesn't pan out and I can rig up a temporary tube from the manifold to my wired up muffler, ill be heading to the shop in jersey where Jcircs has his done so I know it will at least be done.
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY "My mind spins like helicopter blades." -G. Rossdale ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT 3800sc series 2 swap in progress--IT'S ALIVE !!!!! ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 VIN #5835 Stock PRV engine Peugot 604 Intake manifold Exhaust headers Anti-3rd brake light
I wouldn't mind having the trunk cut a bit , but I don't know how to fabricate a new trunk wall once that happens and the first shop refused to do any of that modification. They wouldn't even take the rear heat shield off. They told me I had to take the car home remove the heat shield , cut the trunk out and bring The car back.
Bring the car back ... to them? I don't think so!
Another shop I spoke to that doesn't do exhaust said this about the place I was dealing with. "They are rough." That's an understatement. ------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY "My mind spins like helicopter blades." -G. Rossdale ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT 3800sc series 2 swap in progress--IT'S ALIVE !!!!! ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 VIN #5835 Stock PRV engine Peugot 604 Intake manifold Exhaust headers Anti-3rd brake light
[This message has been edited by Lou and Blue (edited 07-11-2015).]
I wouldn't mind having the trunk cut a bit , but I don't know how to fabricate a new trunk wall once that happens and the first shop refused to do any of that modification. They wouldn't even take the rear heat shield off. They told me I had to take the car home remove the heat shield , cut the trunk out and bring The car back.
Bring the car back ... to them? I don't think so!
Another shop I spoke to that doesn't do exhaust said this about the place I was dealing with. "They are rough." That's an understatement.
I would advise against removing the heat shield. It is there for a reason. Depending on muffler proximity to the trunk wall the heat shield can prevent the rug from melting/burning and cause the trunk to get so hot luggage can even melt. As for Dave's headers, that's just another product of his excellent fabrication skills. Some top notch exhaust work has come out of Dave's shop but AFAIK, he no longer offers them for sale. As per fieroflyer the 3.8 Mustang headers can be modified to fit by rotating and notching the flanges or you can use the ZZ Powerlog to eliminate the exhaust restriction of the front manifold.
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
Dennis is correct, those headers were made in my shop and yes, we stopped making them a few years ago. They were designed to make the 3800 sound better and they do not free up as much horsepower as the equal length ones. Every car that we equipped with them, has an amazing sound. We modded a Magnaflow muffler and did a slight redesign on those headers to give it a European sound. There is a youtube video of it floating around. The muffler in the above pic that I posted is the longer muffler. It s for a V8 Camaro, if I remember.
Jcircs said the heat shield is To Be removed for this setup and he put a heat resistant stick on pad inside the trunk so the carpet doesn't melt. I am gonna see if it can fit without removing the heat shield but if the shield needs to be removed, ill do what Jerry did.
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY "My mind spins like helicopter blades." -G. Rossdale ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT 3800sc series 2 swap in progress--IT'S ALIVE !!!!! ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 VIN #5835 Stock PRV engine Peugot 604 Intake manifold Exhaust headers Anti-3rd brake light
Second shop told me the same thing today. "Won't fit no way you have to cut the trunk" So I rented a uhaul car trailer for tomorrow at 7am and I'm gonna bring the car to Jerrys guy at thrust performance in NJ who did this before and knows he will be able to do it. The guy mike at thrust performance sounds VERY nice and reasonable and maybe he can even cut and weld my bumpstops too and install the new control arm bushings , lower ball joints and my eibach springs in the front. I spoke to him and he said to bring the stuff and we will see how things go. The exhaust is the main concern anyway, and I have faith he will be able to accomplish that without a problem.
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY "My mind spins like helicopter blades." -G. Rossdale ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT 3800sc series 2 swap in progress--IT'S ALIVE !!!!! ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 VIN #5835 Stock PRV engine Peugot 604 Intake manifold Exhaust headers Anti-3rd brake light
I have installed a few of these mufflers into Fieros with 3800 swaps using the stock 3800 manifolds and I have never been able to get that 12267 magnaflow muffler to fit between the cradle and the stock Fiero trunk - at least not with leaving adequate air gap space between the muffler and the trunk wall's heat shield, which is absolutely necessary.
An air gap must exist between the muffler and the heat shield, and also between the heat shield and trunk wall to prevent the bulk of heat from being transferred into the trunk from the exhaust. Removing the heat shield or reducing one of these air gaps to zero and adding a "stick-on" insulator on the inside of the trunk wall is not going to be enough.
It might be possible to modify the 12267 muffler to make it thinner in the required areas to get it to fit without modifying the trunk, but I've always been hesitant to do this with the magnaflow muffler because of its design (it has sound deadening packing material inside that will be damaged if you cut into it).
Instead, I've sawed thru the trunk wall facing the muffler in key areas below the space frame rails and then folded the trunk in about 2" at the bottom (and progressively less the higher you go) and this does give enough room to fit the magnaflow muffler without significantly reducing the volume of the trunk.
------------------ More is more. Less is not enough. Custom GM OBD1 & OBD2 Tuning | Engine Conversions & more | www.gmtuners.com
I have installed a few of these mufflers into Fieros with 3800 swaps using the stock 3800 manifolds and I have never been able to get that 12267 magnaflow muffler to fit between the cradle and the stock Fiero trunk - at least not with leaving adequate air gap space between the muffler and the trunk wall's heat shield, which is absolutely necessary.
An air gap must exist between the muffler and the heat shield, and also between the heat shield and trunk wall to prevent the bulk of heat from being transferred into the trunk from the exhaust. Removing the heat shield or reducing one of these air gaps to zero and adding a "stick-on" insulator on the inside of the trunk wall is not going to be enough.
It might be possible to modify the 12267 muffler to make it thinner in the required areas to get it to fit without modifying the trunk, but I've always been hesitant to do this with the magnaflow muffler because of its design (it has sound deadening packing material inside that will be damaged if you cut into it).
Instead, I've sawed thru the trunk wall facing the muffler in key areas below the space frame rails and then folded the trunk in about 2" at the bottom (and progressively less the higher you go) and this does give enough room to fit the magnaflow muffler without significantly reducing the volume of the trunk.
Ryan, my thinking exactly. I would never install a muffler in a Fiero without the heat shield and a 1/2" min air gap. My Spintech install has the gap, the heat shield and full trunk with interior trunk insulation so its cool in there. Giving up trunk space for the Magnaflow is probably the only professional way of installing it. Lou believes that the Magnaflow will fit ( and also said that he doesn't mind cutting the trunk) so he's probably on the right track but he also said that jcircs has the install with an untouched trunk. This is his thread so lets see what he comes back with. Lou, what say you?
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
I say done ! Finally done ! Woo Hoo ! It's got about 1/2 inch air gap but no heat shield so I am gonna do a double or triple layer of the heat reflecting padding under the trunk carpet. Looks awesome ! The entire experience at JCircs' guys shop was a total pleasure and a great time ! The attitude was perfect because it was all positive all the time and the welds are PERFECT and the set looks great and they even fit my cat in there using awesome creativity in the welder's part. I met Jerome and his friend Van and had a great time. The welder checked with me as he went and I felt very involved with the setting up. It was an awesome experience for me plus I have a perfect magnaflow exhaust with a high flow magnaflow cat that sounds awesome. I'm not into the raspy spin tech sound, just my taste. Loved the day, even trailering the car to and from through NY traffic wasnt terrible, I was bulls****ing with my dad the whole way. Wish I could post pics, I took a bunch
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY "My mind spins like helicopter blades." -G. Rossdale ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT 3800sc series 2 swap in progress--IT'S ALIVE !!!!! ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 VIN #5835 Stock PRV engine Peugot 604 Intake manifold Exhaust headers Anti-3rd brake light
[This message has been edited by Lou and Blue (edited 07-14-2015).]
It's got about 1/2 inch air gap but no heat shield so I am gonna do a double or triple layer of the heat reflecting padding under the trunk carpet.
You really should have a heat shield installed between the trunk wall and the muffler. The job of the heat shield is to reflect radiant heat from muffler. Without this shield, that radiant heat will be transferred directly onto the trunk wall and even your triple layer of heat reflective padding MAY NOT BE ENOUGH.
You really should have a heat shield installed between the trunk wall and the muffler. The job of the heat shield is to reflect radiant heat from muffler. Without this shield, that radiant heat will be transferred directly onto the trunk wall and even your triple layer of heat reflective padding MAY NOT BE ENOUGH.
I agree but if Lou has 1/2" clearance between the hot muffler and the trunk wall and no room for a heat shield, it may be possible to put heat insulation directly on the trunk wall inside the engine compartment. You can purchase ceramic fiber heat insulation used for wood stoves and use high temp adhesive ( or maybe wide top pop rivets) to hold it in place. This could be a solution to keeping the muffler heat away from the brake line that runs there. Such insulation is available in many thickness. http://www.ebay.com/itm/1mm...7abc3b48ac9381bf88%2 6pid%3D100005%26rk%3D1%26rkt%3D6%26sd%3D271673466700
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
You definitely want the insulation on the outside of the trunk wall. Insulation on the inside of the trunk will still allow the heat to transfer through the metal skin, and once the skin is hot, it will continue to transfer into the trunk.
But it will have to go inside the trunk wall because I cant remove the exhaust, the hangers are welded to the muffler and the frame, they have that rubber ring between them so I might be able to drop the exhUst but I'd rather not mess with it. I was gonna get the perforated stainless heat metal to put up against the outside of the trunk wall but I just don't see squeezing that in without dropping the exhaust to do it.
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY "My mind spins like helicopter blades." -G. Rossdale ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT 3800sc series 2 ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 VIN #5835 Stock PRV engine Peugot 604 Intake manifold Exhaust headers Anti-3rd brake light
I agree but if Lou has 1/2" clearance between the hot muffler and the trunk wall and no room for a heat shield, it may be possible to put heat insulation directly on the trunk wall inside the engine compartment.
Insulation applied directly to a surface with no air gap does not perform the same as a metal heat shield that has an air gap. This all has to do with stopping the transfer of radiated heat.
I'm not saying you won't ALSO need insulation inside of the trunk even when using a heat shield, because yes, you still do. What I'm saying is a stick-on piece of insulation applied to the outside of the trunk wall does not give you two air gaps (like a proper metal heat shield would), and I doubt the effectiveness of such insulation to block radiated heat from getting to the trunk wall.
I have had this exact setup in my car for over a year now, 1/2" air space all around the muffler. My heat shield is removed and thermal padding is installed between the carpet and trunk. The only difference between mine and his, he has a catalytic converter I don't. I've been on long drives on hot days, hours on the dyno and some street tuning, there is no sign of melting or intense heat to anything inside my trunk or the carpet. So what else is there to worry about?
I have had this exact setup in my car for over a year now, 1/2" air space all around the muffler. My heat shield is removed and thermal padding is installed between the carpet and trunk. The only difference between mine and his, he has a catalytic converter I don't. I've been on long drives on hot days, hours on the dyno and some street tuning, there is no sign of melting or intense heat to anything inside my trunk or the carpet. So what else is there to worry about?
Knowing you as a truthful person, I do not doubt anything that you say. I still would have concerns about removing the heat shield and let me tell you why. An exhaust system can get very hot, several hundred degrees is not uncommon. When steel is exposed to elevated temperatures over a long period it weakens/softens, rusts and deteriorates. Look at a mild steel exhaust system and you can see the effects. Also the question comes up of why GM engineers thought it necessary to put it there?. Now with your system and no catalytic converter the trunk wall may not get unreasonably hot and your install may be OK but add the cat and the temperatures in that area can soar. I could be wrong but I believe that exceeding the heat threshold where the metallurgy will change will be detrimental to the trunk wall and long term to the structural integrity of the car. I will leave the debate at this point and hopefully a qualified metallurgist can verify if my concerns are founded or unfounded. I would also like to understand why GM put it there in the first place.
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Heddman Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
But the cat has PLENTY of room around it , the cat isn't 1/2 inch air gap, it's much more than that , I can measure the cats air gap and report back. I wish I could post pics. Only the muffler has the 1/2 inch air gap, every other part has much more air gap.
I also have a sheet of 1'inch rigid foam insulation and a 2"'sheet as well. I am going to Put that behind the carpet as well. So it will be muffler-1/2 inch air gap-trunk wall-reflective heat shielding and then either 1 or 2 Inch rigid foam house insulation. I think it' be just fine. I will report back as I go. Thanks for everyone's input. Jerome, it was awesome meeting you and Van.
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY "My mind spins like helicopter blades." -G. Rossdale ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT 3800sc series 2 ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 VIN #5835 Stock PRV engine Peugot 604 Intake manifold Exhaust headers Anti-3rd brake light
[This message has been edited by Lou and Blue (edited 07-16-2015).]
Something you might try, once you have everything situated, is to measure the temp in the trunk. I have a couple of wireless indoor/outdoor thermometers I use here at the house. One I use to measure the temp in my wine cooler. I plan on putting one of the remote sensors in the trunk, and then go for a ride to see what the temps actually look like back there. Just hate to see my golf clubs get cooked If you don't have one, you can find them at Home Depot for about $15, and they are useful around the house too!
Something you might try, once you have everything situated, is to measure the temp in the trunk. I have a couple of wireless indoor/outdoor thermometers I use here at the house. One I use to measure the temp in my wine cooler. I plan on putting one of the remote sensors in the trunk, and then go for a ride to see what the temps actually look like back there. Just hate to see my golf clubs get cooked If you don't have one, you can find them at Home Depot for about $15, and they are useful around the house too!
Thanks it is good advice and I will definitely do that. Harbor freight makes that point and shoot laser pointer temp gauge. I was just using one for my Delorean ac today which sadly didnt turn out well. Funny the Delorean and the Fiero have the same ac system.
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY "My mind spins like helicopter blades." -G. Rossdale ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT 3800sc series 2 ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 VIN #5835 Stock PRV engine Peugot 604 Intake manifold Exhaust headers Anti-3rd brake light
[This message has been edited by Lou and Blue (edited 07-17-2015).]
Thanks it is good advice and I will definitely do that. Harbor freight makes that point and shoot laser pointer temp gauge. I was just using one for my Delorean ac today which sadly didnt turn out well. Funny the Delorean and the Fiero have the same ac system.
It would be better to get a remote temp probe like darbysan recommended. That way you can place the remote probe in the trunk, shut the deck lid, and go for a drive to see what "real-world" conditions exist inside the trunk while driving. It is going to be difficult to stop in the middle of the interstate, pop the deck lid, and run out there with your infrared temp gun to see how hot it is inside the trunk without running the risk of getting hit by another driver.
Ok I'll try the thermometer you're talking about. Good point.
------------------ ===Always trying to find time to work on cars=== Louis Duet Baldwin, Long Island, NY "My mind spins like helicopter blades." -G. Rossdale ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ "Blue" <= '85 Fiero GT 3800sc series 2 ~~~~~~~~~~~~~~~~~~~~~ "Boo" <= '81 Delorean DMC-12 VIN #5835 Stock PRV engine Peugot 604 Intake manifold Exhaust headers Anti-3rd brake light
Just for reference,I got my '87 2.8 stock exhaust back on the road this week. Took if for a 2 hr drive ( no, not gilligan's island!), and measured the trunk temp as I drove. OAT was mid 90's and sunny. Temp in the trunk came up to about 105 pretty quickly, and then over the next 1.5 hrs slowly crept up to about 120. Did some stop and go driving, and didn't see much difference in the temp, so I think most of the heat load was coming from the SUN and OAT combo.
It will be interesting to see other comparisons to a 3800 , especially one with the cat in the rear ( they can get pretty hot). Might help me decide on how to structure my exhaust system.
------------------ '87 GT in process, including GA / Seville brakes, Poly Suspension, '95 3800 Series 1 SC ( 225 hp ) T460e.
If you don't have one, you can find them at Home Depot for about $15, and they are useful around the house too!
